baber/WOPTO huggingface dataset:
Patent GB-110719-A (GB)
Title: Farm and Road Tractor Units.
Inventor: GUILDER WALTER CLARENCE
IPC: B60K17/04
Filed: 1917-06-11
Abstract: 110,719. Guilder, W. C. June 11, 1917. Convertible touring and commercial cars.-A tractor attachment for a pleasure car comprises a removable auxiliary U-shaped frame which is pivoted to the main frame in line with the universal joint of the propeller shaft, and is supported by the rear axle; the tractor wheels are carried by the frame forwardly of the rear axle and are driven by chain or spur gearing from pinions &c. which replace the ordinary driving-wheels. The auxiliary frame 13 is provided with brackets 15 connected by removable pivot pins 21 with brackets 17 on the main frame 1. The rear of the frame 13 is rigidly attached to the rear axle by detachable brackets 45. The tractor wheels 37 are carried on stub axles which are carried by brackets 32 on cross members 30. The tractor wheels may be provided with internally toothed wheels 39 in mesh with pinions 40 on the rear axle, or the drive may be effected through spur or chain gearing. Reference has been directed by the Comptroller to Specification 112,998.
Patent GB-707560-A (GB)
Title: Improvements in and relating to the manufacture of pigmentary titanium dioxide
Inventor: KRCHMA IGNACE JOSEPH
IPC: C01G23/07
Filed: 1951-04-11
Abstract: Pigmentary titanium dioxide is produced by reacting in the vapour phase, at 800-1350 DEG C., titanium tetrachloride and a small amount, say 0.1-10 per cent. by weight, aluminium chloride. with an oxygen-containing gas, in the presence of 0.1-5 per cent. by volume of water vapour, and in a chamber in which the reactants remain for 0.01-1 seconds, withdrawing the reaction products and cooling them to below 600 DEG C. within, say, 1-5 secs., and at the most, 10 secs., and recovering the titanium dioxide.  The quenching is effected by adding cooled product gases, or by a blast of cold, finely divided solid such as silica, which is later separated by passing the gaseous suspension through a cyclone &c. separator operating at a suitable rate.  Other volatilizable halides, e.g. 0.1-10 per cent. by weight silicon, zirconium, antimony, zinc or tin chloride may be present in the reaction. The product may be calcined at 500-800 DEG C., and thereafter milled. The aluminium and titanium chlorides may be mixed in liquid or vapour state.  The reaction chamber, which may be made of silica, or the reactants may be preheated.  Water may be supplied to the reaction zone separately, or with the reaction gases. Alternatively, it may be formed in the reaction zone by the addition of hydrogen, a hydrocarbon, or hydrogen chloride.  Air and/or oxygen may be used as the oxidizing gas.  The process may be effected at atmospheric, or higher or lower, pressure.  By suitably choosing the conditions of operation, anatase or rutile may be obtained. Specification 464,836 is referred to.
Patent GB-879297-A (GB)
Title: Key-operated locking devices
IPC: E05B17/04
Filed: 1959-03-12
Abstract: 879,297. Revolving barrel locks. PARKES & SONS Ltd., JOSIAH, and ORDIDGE, E. F. March 3, 1960 [March 12, 1959], No. 8522/59. Class 44. A key-operated locking device of the kind comprising a plug 1 mounted for rotation in a surrounding fixed body or cylinder to which it is adapted to be locked against rotation by either disc or pin tumblers, and to be released for rotation by a key thereby to operate a switch, the connection between the rotary plug 1 and the member 6 of the switch it operates being an axial spigot 4 containing a spring-loaded plunger 7, characterized in that the retaining plunger 7 and its loading spring 9 are made captive in a trans-axial housing bore 8 by a washer or disc 13 which seats upon an annular shoulder 14, the disc or washer being secured in position by peening over the surrounding metal of the spigot.
Patent GB-492669-A (GB)
Title: Improvements relating to means for equalising or balancing the operation of aircraftflaps, retractable undercarriages or other adjustable aircraft elements
IPC: B64C25/22
Filed: 1937-03-23
Abstract: 492,669. Hydraulic apparatus. DOWTY, G. H. March 23, 1937, No. 8530. [Class 69 (ii)] [Also in Group XXXIII] Means for ensuring equality of movement of two constructionally separate elements on aircraft, e.g. wing-flaps and undercarriages, comprise a double-acting hydraulic piston and cylinder 10 operating with each element and cross connections 11, 12 between effectively opposite sides of the pistons so that fluid displaced by the movement of one piston is accommodated by the equal movement of the other piston. In one form, wing-flaps 1, 2 are operated by jacks 3 through pistonrods 4 and horns 5. A byepass 13 and cock 14 may be provided and the system may incorporate known breathing and topping-up means. In a modification the jacks and cylinders 10 are incorporated in single cylinders, the pistons being carried by a common piston-rod. If the supply pipes to the jacks are provided with means to maintain pressure in the system on fracture of one line the cylinders 10 form means by which the movement of one flap is communicated to the other.
Patent GB-253058-A (GB)
Title: Kneading machines
IPC: B29B7/18
Filed: 1926-03-30
Abstract: 253,058. Kempter, F. June 25, 1925, [Convention date]. Stationary mixers with rotary stirrers.- A kneading machine for rubber &c. comprises kneading - arms mounted on parallel, oppositely-rotating shafts at .different levels, working in a jacketed trough c, the wall e of the feeding opening d being extended so that the path of the kneading arms a, where, they meet the rubber, is in a downward direction. The plane passing through the shafts is parallel to the path at this point; the arms b thus force the rubber &c. into the path of the arms a.
Patent GB-891080-A (GB)
Title: Self expanding mandrel for pile casings
IPC: E02D7/30
Filed: 1960-03-11
Abstract: 891,080. Expanding mandrels. McKEE, J. S. March 11, 1960, No. 8655/60. Class 68(2). A mandrel 12 which firmly engages the shell 11, Fig. 1, comprises two active segments 16A and two passive segments 16P fitted with wedges 17A and 17P respectively so that as the active segments are driven downwards by driving head 13 interaction of the wedges of adjacent segments causes expansion of the mandrel. When the active segments are lifted by means of ring 14 the segments are caused to move together by cam plates 18 on the active segments riding in slots 19 on the passive segments. Each segment comprises a steel angle bar 21, Fig. 9, and a shell face plate 22, the two being welded together at frequent intervals and a series of gusset plates 23 provided between them. At the upper ends of the active segments holes 28, 29 are provided for a pin 27, the bar 21 being reinforced by plates 31, 32 in the vicinity of holes 29. The mandrel is provided with a base plate 37 attached to the passive segments by means of a bolt 38 slidably mounted in gussets 39, 43 to allow for radial movement of the segments. When a chain of mandrel units is used, the active segments of successive units are connected by link 51, having pins 52 extending through it into the segments, a slot 54 in the link providing lost motion such that the upper unit can be collapsed without collapsing the lower unit. In a further embodiment, a wedging core may be used as the active segment together with a plurality of passive stringers or segments.
Patent GB-815863-A (GB)
Title: Dextran solutions
Inventor: HILER MALVERN J
IPC: D01F9/00
Filed: 1957-03-15
Abstract: Dextran of molecular weight 20,000-200,000 is treated with an aqueous solution of boron trifluoride of 50-70 per cent concentration at temperatures between 30 DEG  C. and the freezing point of the solution for a time sufficient to result in dissolution of the dextran.  Dextran of suitable molecular weight may be synthesized from sucrose by the "filtered enzyme" method using solutions of enzymes elaborated by bacteria, e.g. Leuconostoc mesenteroides or L. dextranicum, in the absence of bacteria and cellular debris, or by the partial hydrolysis of native dextran by acid or enzyme action. Shaped articles, e.g. filaments, yarns and films, may be produced by extruding the dextran solutions into aqueous setting baths, e.g. water or aqueous alkaline solutions, and stretching either during or after spinning.  The dextran solutions may also be applied to paper and to textiles, including non-woven fabrics, consisting of natural, artificial or synthetic fibres, e.g. cotton, regenerated cellulose or nylon.  Textile fabrics may be treated with the dextran solutions under tension or in the absence of tension to produce crepe or organdie effects or felted material which may be calendered to provide it with a smooth surface.ALSO:Textiles, e.g. cotton, nylon and regenerated cellulose, are treated with a solution obtained by treating dextran of molecular weight 20,000-200,000 with an aqueous solution of boron trifluoride of 50-70 per cent concentration at temperatures between 30 DEG  C. and the freezingpoint of the solution, and are then rinsed and dried.  Fabrics may be treated under tension or in the absence of tension to produce crepe or organdie effects or felted material which may be calendered to provide it with a smooth surface.  In an example, a cotton fabric is parchmentized.
Patent GB-477323-A (GB)
Title: Improvements in the manufacture of liners, cylinder sleeves and piston ring pots
IPC: B22D13/04
Filed: 1936-03-24
Abstract: 477,323. Casting cylinder liners &c. OUBRIDGE, W. A. March 24, 1936, No. 8711. [Class 83 (i)] [Also in Groups XXVI and XXVII] Cylinder liners and sleeves and piston-ring pots are formed of composite metals or alloys such as steel and cast iron or brass or bronze and cast iron, one of the materials having good bearing properties and the other good tensile strength and toughness, and are produced by introducing one of the materials into a centrifugal mould 2 in the solid state, for example, a thin perforated steel tube 5 or coil of wire, which is spaced from the surface of the mould by distance rings 6, and then rotating the mould and pouring in a molten charge 7 of the other material. Specification 407,413 is referred to.
Patent GB-314112-A (GB)
Title: Improvements relating to electrical signalling systems
IPC: H04Q1/442
Filed: 1928-03-22
Abstract: 314,112. Siemens Bros. &. Co., Ltd., and Christian, D. A. March 22, 1928. Order apparatus.-An electric signalling system, applicable for use in automatic telephone systems in which code sending equipment is required to transmit numbers or the set position of apparatus, comprises means at the transmitter for permitting current to flow in either of two directions and at the receiver a source of alternating current and relays responsive to direction of current flow. The Figure shows a line a which may be earthed at the transmitter through either of rectifiers r, which may be of the copper-oxide type, or directly. The source of alternating current G is connected through oppositely arranged rectifiers r<1> to relays A, B, the armatures of which selectively control lamps L. Additional selections may be made by marginal relays and keys inserting resistance in the line.
Patent GB-674537-A (GB)
Title: Control circuit
IPC: G05B11/01
Filed: 1950-04-06
Abstract: 674,537. Electric control systems. BENDIX AVIATION CORPORATION. April 6, 1950. [April 25, 1949] No. 8743/50. Class 40 (i). A phase advancing circuit for deriving a phase leading component from a modulated alternating voltage controlling e.g. a servo system comprises a rectifier-bridge demodulator to which the modulated voltage signal is applied together with a constant amplitude alternating voltage synchronised with the carrier voltage to produce a demodulated voltage, which is applied to a phase advancing circuit through a cathode follower impedance converting device presenting a high iinpedance to the demodulator and offering a low impedance output from which the phase shifted demodulated signal is applied to a rectifier-bridge modulator (also supplied with an alternating voltage synchronised with the carrier frequency) to produce a remodulated alternating voltage signal having phase advancced modulation. Fig, 1 shows a servomotor control system wherein displacement of the A.C. energised rotor 11 of a selsyn transmitter develops a phase and magnitude variable error signal across the receiver rotor winding 14 which is applied through an amplifier-discriminator 16 and a phase shifting power amplifier 110 to energise the variable phase winding of a biphase servomotor 114, whose other winding is energised from the A.C. supply to drive a controlled member, e.g. an aircraft control surface, and restore the selsyn receiver rotor to its null position. To prevent hunting, the error signal from the rotor is resistance coupled to a demodulating rectifier bridge 21 energised from the A.C. supply through a phase delay network 46. The resultant pulsating undirectional signal is applied through tandem cathode follower triodes, intercoupled by a capacity 62 and a resistor 64 to give a 45 degrees phase shift to the centre point of the primary of a transformer 78, whose terminals are earthed through resistors 80, 81 so proportioned with the primary halves of the transformer and the coupling capacity 74 to give a further 45 degrees phase shift. A known modulator bridge 82 comprising rectifiers 90, 92, 94, 96 interconnected with resistors 83, 84, 86, 88 is connected across the primary and is A.C. energised from a centre tapped source across points 98, 100 to develop a signal across the transformer secondary of the same frequency as the error signal and modulated with the same variations, but 90 degrees advanced in phase, which is superimposed in series on the error signal at the output of amplifier 16. The modulator is balanced at zero signal input by sliders 104, 106. Specification 613,909, [Group XXXV], is referred to.
Patent GB-567266-A (GB)
Title: Improved method and apparatus for concentrating the heavier ingredients or values ofan ore pulp or slurry
IPC: B03B5/04
Filed: 1943-06-01
Abstract: 567,266. Concentrating ores. CONSOLIDATED MINING & SMELTING CO. OF CANADA, Ltd. June 1, 1943, No. 8756. Convention date, Oct. 29, 1942. [Class 82 (ii)] Ore pulp is concentrated on a multiple unit concentrator comprising a number of tiltable decks, pulp being supplied continuously to a distributer by which it is fed to the decks while they are in the concentrating position and diverted from the decks and returned to the distributer while the decks are in the discharging position. In the plant shown, pulp is admitted from a launder 31 to a sump 32 from which it is continuously pumped to a distributor 95 provided in its base with a number of spouts 35 corresponding to the number of concentrator units, each supplying pulp to an annular series of hoppers 36 from which pipes 37 pass it to the feed boxes 40 of the decks 3. A sector-shaped deflector 49 mounted for rotation on a vertical axis 41 moves between the spouts 35 and the hoppers 36 and deflects the pulp from a particular spout 35 to a hopper 50 and back to the sump 32. At this time, the decks 3 of the corresponding concentrator unit 1 are tilted by means of a cam 13 and links 8, 10, and a valve 71 is simultaneously opened to supply water through pipes 73 to wash the concentrates from the decks 3 into a launder 7. In the concentrating position of the decks. 3 the tailings pass to a launder 6. Each deck is covered with rubber-like cloth material having a grid-like surface.
Patent GB-747143-A (GB)
Title: Improvements in or relating to loading machines
IPC: E02F3/348
Filed: 1954-03-26
Abstract: 747,143. Overthrow loaders; scraper devices for trimming material. SALZGITTER MASCHINEN AKT.-GES. March 26, 1954 [March 28, 1953], No. 8859/54. Classes 78 (3) and 78 (4). A scoop-arm overthrow loader 2 for shovelling mined material into an attached truck 7 is provided with means for spreading the material in the truck. As shown, a cylinder 6 is pivotally mounted on each side of the loader on a bracket 4, the rear end of each cylinder being supported and movable up and down by a second fluidpressure cylinder 10. Between the ends of the piston-rods 8 of cylinders 6 is mounted a rake 9 given longitudinal and vertical movement by the cylinders 6 and 10 respectively. Cylinders 6 may be of the telescopic sectional type. Rack-and-pinion or screw-and-nut mechanism may be used in place of the cylinders.
Patent GB-1441895-A (GB)
Title: Adjustable watch strap end connector
IPC: A44C5/14
Filed: 1975-03-04
Abstract: 1441895 Watch strap connectors RODI & WIENENBERGER AG 4 March 1975 8873/75 Heading A3H [Also in Division E2] An adjustable watch strap end connector for attaching a watch strap to a wrist watch pin 17 carried between lugs 18 of a watch case 16 comprises a hook 2, two sleeves 5 slidable within the hook 2, the hook 2 and the sleeves 5 defining respective recesses 3 and 6 within which the pin 17 is received, the hook 2 and the sleeves 5 having bendable tongues 15, 15' and stops 11 respectively so that the tongues 15, 15' are bent, when in use thereby abutting against the stops 11 for trapping the connector pin 17 within the connector. The length of the connector is varied by sliding the sleeves 5 inwardly or outwardly of the connector to suit different lengths of connector pins. An eye portion 4 accommodates an end of the watch strap.
Patent GB-540920-A (GB)
Title: Improvements relating to power operated presses
IPC: F16P3/00
Filed: 1940-05-18
Abstract: 540,920. Combined clutch and brake mechanism. TAYLOR & CHALLEN, Ltd., and CHALLEN, H. D. May 18, 1940, No. 8874. [Class 80 (ii)] [Also in Group XXII] A safety means for preventing operation of a power press of the crank-operated type in which the drive is transmitted from a combined fly-wheel and driving-pulley to the crank-shaft through an automatic clutch mechanism embodying a displaceable key and cam ring incorporates a lever control mechanism which tends constantly to return to normal out of action position, a dual actuating means operable thereby to actuate the key and cam ring to couple the drive to the crank-shaft and a combined pivotal and slidable link mechanism directly connected to the dual actuating means and maintained out of action while the press is running normally, but which is brought into action automatically in the event of the press commencing an undesired stroke and thereby a brake is actuated to bring the press to a standstill. As shown, the crank-shaft 25 of the press is operated for a series of rotations as long as a treadle 4 is depressed, or for a single revolution at each depression of the treadle, through a clutch key 10 operated by a cam 9a on a main lever 9 which is operated by a screw 8 carried by a lever 6 which is operated directly from the treadle 4 by means of a connecting-rod 5. The lever 6 is connected by a link 12, and lever 13 to a rod 14 which is capable of operating a band brake 20 by means of action upon a lever 18 which normally maintains the brake inactive against the action of an adjustably spring- pressed bolt 19. Normally the rod 14 is raised out of the path of a trigger 26a by the lever 13, but on failure of the clutch the continued movement of the shaft 25 causes the trigger 26a to be actuated by a cam 28 and lever 26 to operate the rod 14 so as to apply the brake and stop the press. The lever 26 is re-set by the action of a roller 30 on the brake drum upon a supplementary arm 29 which constitutes a downward extension of the trigger lever.
Patent GB-893915-A (GB)
Title: Laminated sheet material
IPC: E04C2/20
Filed: 1960-03-14
Abstract: 893,915. Laminates. RIV OFFICINE DI VILLAR PEROSA S.p.A. March 14, 1960 [April 3, 1959; May 26, 1959], No. 8931/60. Class 140. A plastic laminated panel comprises a decorative pattern in relief on at least one of its faces. The panel may range in thickness between 1 and 2 millimetres. The greatest difference in thickness between the plane of the panel and that of the pattern may range between a few thousanths and a few hundredths of a millimetre. The panel may be constituted of a carrier layer comprising paper impregnated with thermosetting resin such as phenol resins and a decorative layer comprising paper impregnated with thermosetting resin especially of the transparent or translucent kind such as melamine, urea or polyester resins. The unit comprising the carrier and decorative layers is moulded under heat and pressure to form a unitary body. The decorative surface may be formed by the use of an engraved die or platen in a press during manufacture of the panel itself. Alternatively the decorative surface may be formed by passing a plastic laminated panel through a calender having an engraved roll. As shown in Fig. 1 a panel comprises a carrier layer 1 and a decorative layer 2, the latter having bosses 3 and carvings 4 situated in different planes whose levels are separated by a distance A. The decorative layer may be protected by a foil (not shown) of thermosetting resin.
Patent GB-1106168-A (GB)
Title: Process for the preparation of piperidine
Inventor: CHICHERY GUY
IPC: C07D295/023
Filed: 1967-02-24
Abstract: Piperidine is prepared by reacting glutaric acid or its anhydride with ammonia under a pressure of 50-500 bars and a temperature of 150-350 DEG  C. in the presence of a hydrogenation catalyst. Preferred catalysts are those comprising ruthenium, rhodium, palladium, platinum, cobalt, nickel, chromium or copper, e.g. ruthenium on carbon black or cobalt on kieselguhr.  If desired, a solvent, e.g. water or a cyclic ether, may be present. The piperidine obtained may be purified by washing the catalyst with ethanol and distilling the solution obtained under atmospheric pressure to separate the solvents and piperidine from the non-volatile residue; hydrochloric acid is added to the volatile fraction and the fraction is evaporated to dryness to give piperidine hydrochloride which is treated with caustic soda solution to regenerate the piperidine.
Patent GB-1519740-A (GB)
Title: Sampling and inspection apparatus for hydraulic liquid present in hydraulic system
IPC: F15B21/041
Filed: 1976-03-05
Abstract: 1519740 Sampling and inspection device EGLINSKI GERATETECHNIK KG 5 March 1976 [7 March 1975] 08994/76 Heading B8N A device for sampling and inspecting hydraulic liquid in a closed hydraulic system comprises a housing 4 connected to the system with a valve 23, 24 to control the flow from the system to a transparent inspection cap 27 and a sampling device 44. The valve 23, 24 is manually operated when required and the hydraulic liquid flows via chambers 34, 37 in the cap for inspection. A pair of lamps (40), Fig. 1 (not shown), illuminate the liquid. Normally the liquid flow from the cap along ducts 38, 42 to a tank. When a sample of liquid is required a closure 54 is removed from the sampling device 44 and the spindle 50 turned to open a valve 51. A test tube is positioned under the sampling device to collect the liquid.